<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<audio id="player" autoplay="autoplay" src="song.mp3" controls="controls"></audio>
<button id="btn-play">Play</button>
<button id="btn-pause">Pause</button>

<script src="main.js"></script>
</body>
</html>